添加类型自序列化逻辑

Author: lindexi

src/MediaConverters/MediaConverters.Tool/Contexts/ImageConvertContext.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
-using System.Text.Json.Serialization;
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
 
 namespace DotNetCampus.MediaConverters.Contexts;
 
@@ -11,4 +12,14 @@ public class ImageConvertContext
     public bool? UseAreaSizeLimit { get; init; }
 
     public List<IImageConvertTask>? ImageConvertTaskList { get; init; }
+
+    public string ToJsonText()
+    {
+        return JsonSerializer.Serialize(this, typeof(ImageConvertContext), MediaConverterJsonSerializerSourceGenerationContext.Default);
+    }
+
+    public static ImageConvertContext? FromJsonText(string jsonText)
+    {
+        return JsonSerializer.Deserialize<ImageConvertContext>(jsonText, MediaConverterJsonSerializerSourceGenerationContext.Default.ImageConvertContext);
+    }
 }

src/MediaConverters/MediaConverters.Tool/Contexts/MediaConverterJsonSerializerSourceGenerationContext.cs

@@ -1,8 +1,10 @@
-using System.Text.Json.Serialization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace DotNetCampus.MediaConverters.Contexts;
 
-[JsonSourceGenerationOptions(WriteIndented = true)]
+[JsonSourceGenerationOptions(WriteIndented = true,
+    DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull)]
 [JsonSerializable(typeof(ReplaceColorInfo))]
 [JsonSerializable(typeof(SetDuotoneEffectTask))]
 [JsonSerializable(typeof(SetBlackWhiteEffectTask))]